| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20091007220732.15597.75850.stgit@bob.kio>
Date: Wed, 07 Oct 2009 16:07:32 -0600
From: Alex Chiang <achiang@...com>
To: lenb@...nel.org
Cc: linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/6] ACPI: dock: clean up error handling paths in dock_add()
Remove some copy/paste code in our error handling paths, which makes
the function smaller and slightly easier to read.
Signed-off-by: Alex Chiang <achiang@...com>
---
drivers/acpi/dock.c | 66 +++++++++++++++++++--------------------------------
1 files changed, 24 insertions(+), 42 deletions(-)
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 7338b6a..a8f81c0 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -987,46 +987,24 @@ static int dock_add(acpi_handle handle)
dock_station->flags |= DOCK_IS_BAT;
ret = device_create_file(&dock_device->dev, &dev_attr_docked);
- if (ret) {
- printk(KERN_ERR "Error %d adding sysfs file\n", ret);
- platform_device_unregister(dock_device);
- kfree(dock_station);
- dock_station = NULL;
- return ret;
- }
+ if (ret)
+ goto err_unregister;
+
ret = device_create_file(&dock_device->dev, &dev_attr_undock);
- if (ret) {
- printk(KERN_ERR "Error %d adding sysfs file\n", ret);
- device_remove_file(&dock_device->dev, &dev_attr_docked);
- platform_device_unregister(dock_device);
- kfree(dock_station);
- dock_station = NULL;
- return ret;
- }
+ if (ret)
+ goto err_unregister1;
+
ret = device_create_file(&dock_device->dev, &dev_attr_uid);
- if (ret) {
- printk(KERN_ERR "Error %d adding sysfs file\n", ret);
- device_remove_file(&dock_device->dev, &dev_attr_docked);
- device_remove_file(&dock_device->dev, &dev_attr_undock);
- platform_device_unregister(dock_device);
- kfree(dock_station);
- dock_station = NULL;
- return ret;
- }
+ if (ret)
+ goto err_unregister2;
+
ret = device_create_file(&dock_device->dev, &dev_attr_flags);
- if (ret) {
- printk(KERN_ERR "Error %d adding sysfs file\n", ret);
- device_remove_file(&dock_device->dev, &dev_attr_docked);
- device_remove_file(&dock_device->dev, &dev_attr_undock);
- device_remove_file(&dock_device->dev, &dev_attr_uid);
- platform_device_unregister(dock_device);
- kfree(dock_station);
- dock_station = NULL;
- return ret;
- }
+ if (ret)
+ goto err_unregister3;
+
ret = device_create_file(&dock_device->dev, &dev_attr_type);
if (ret)
- printk(KERN_ERR"Error %d adding sysfs file\n", ret);
+ goto err_unregister4;
/* Find dependent devices */
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
@@ -1036,10 +1014,8 @@ static int dock_add(acpi_handle handle)
/* add the dock station as a device dependent on itself */
dd = alloc_dock_dependent_device(handle);
if (!dd) {
- kfree(dock_station);
- dock_station = NULL;
ret = -ENOMEM;
- goto dock_add_err_unregister;
+ goto err_unregister5;
}
add_dock_dependent_device(dock_station, dd);
@@ -1047,12 +1023,18 @@ static int dock_add(acpi_handle handle)
list_add(&dock_station->sibling, &dock_stations);
return 0;
-dock_add_err_unregister:
+err_unregister5:
device_remove_file(&dock_device->dev, &dev_attr_type);
- device_remove_file(&dock_device->dev, &dev_attr_docked);
- device_remove_file(&dock_device->dev, &dev_attr_undock);
- device_remove_file(&dock_device->dev, &dev_attr_uid);
+err_unregister4:
device_remove_file(&dock_device->dev, &dev_attr_flags);
+err_unregister3:
+ device_remove_file(&dock_device->dev, &dev_attr_uid);
+err_unregister2:
+ device_remove_file(&dock_device->dev, &dev_attr_undock);
+err_unregister1:
+ device_remove_file(&dock_device->dev, &dev_attr_docked);
+err_unregister:
+ printk(KERN_ERR "%s encountered error %d\n", __func__, ret);
platform_device_unregister(dock_device);
kfree(dock_station);
dock_station = NULL;
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists